Water-circulating means for internal-combustion engines.



T. O. YOUNG. WATER CIROULATING MEANS FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED JULY 29, 1913.

Patesitmi Sept. 15, 1914.

THOMAS C. TOUNG, OF GLENDALE, CALIFORNIA.

WATER-CIRCULATING MEANS FOR INTERNAL-CQMBUSTION ENGINES.

Specification of Letters Patent.

Patented Sept. 15, 1914.

Application tiled July 29. 1913. Serial No. 781,759.

To all whom it may concern."

'Be it known that ,I, THOMAS C. Youno, a; citizen of the United States,residing at- Glendale, in the c'ounty of. Los Angeles,

State of California, have-invented a new and useful Improvement inWater-Circulating Means for Inte'imal-Combustwn Eni gines, of whichthefo'llowing is a specificaindefinite time. I

tion. v Thisinvention relates toimprorements in the water circulatingsystem used inv con nection witlr-gasolene engines, such systemincluding aMater jacket for the, engine and a radiator connected to thewater jacket.

The main object of the present invention is to conserve the water insuch a'system, so that when the apparatus has once been filled withwater it will remain full for an In connection with the radiator abovereferred to an overflow pipe isgenerally pro-' vided, which is open tothe outer air, and through which water or steam escapes when the waterin the-radiator is boiling. This results in loss of water from theapparatus and my invention provides for retaining this Water insuchmanner that t is drawn back into the radiator when it cools.

Another objectof my-invention is to pre vent access of air. to theradiator, thereby preventing rusting of the radiator walls. In theoperation of a. radiator having an open overflow-,I air'. is drawnintovthe radi-.' ator through this overflow whenever theradiator'cools,resulting in serious damage to the radiator by rusting, and my inventionavoids this objectionable action by sealing the water circulating systemfrom direct contact with the air. 7

Other'objects of my invention will appear hereinafter. g r

The accompanying drawings illustrate an embodiment of my invention andreferring thereto: Figure] is a vertical section of an automobileprovided "with my invention. Fig. 2 is a plan view of the watercirculating system and the overflow receiver therefor.

The invention is shown as applied in connection with an automobile, butis capable of general application tointernal combus-' tion engines ofthe water cooled type.

1 designates the body or frame on which the engine 2 and radiator 3 arefmounted. Engine 2 is provided with the usual water jacket '2 havingwater circulating connections 4 and 5 with the radiator, the arrangementshown being of the thermosiphon type, whereinithe circulation is,effected automatically, without the .use'of a pump.

The radiator is provided at its top with the usual tiller cap' 6, and anexhaust or overflow pipe 8 opens'at its upperend'into the pace at thetop of the radiator, for exambeneath the cap 6, said pipe.

ple, directly extending downwardly andthrough'the radiator wall. union9, a pipe 10 leading to a receiver or tank ll, a sealing tube 12 beingconnected to the pipe 10 by a union 13 and extending down into tank orreceiver 11, and opening at its lower end into said tank, near thebottom thereof Said receiver and the" connecting it with the radiatorare l than the overflow outlet from-therad into said pipe, so thatwater'boilingover at said outlet will flow by gravity to th'e receiver.A vent pipe 14 communicates with the upper part of tank or receiver 11and extends downwardly outside the tank. Tank 11 is provided with afilling opening normally closed by a screw plug 15'.

To this pipe is connected,-by a;

The operation is as follows: The water acket 2, radiator 3 and'receiveror tank I 11 are charged with water, andin the opera tion of the enginethe water in thewater jacket becomes heated and flows automatically tothe'radiator and from the radiator back to the miter-jacket. lVheneverthe water in the radiator becomes hot enough to boil, steam andwater'escape through the exhaust or overflow pipe 8, and are conductedby pipes 10 and 12 to the lowerpart of tank or receiver ll. Any steam soentering the tank 11 is condensed as it rises throughthe cold water insaid tank. Thus the body ofwater in the tank or receiver 11 acts as acondensing means for the steam escaping from the radiator, when ,thelatter becomes hot, and it also acts as a seal for preventing air frompassing back through pipe 10 to the radiator when the latter cools Oncooling of. the radiator any steam in the upper. part off the radiatorbecomes condensed and a vacuum is produced in the radiator at the top ofthe overflow pipe, with the result that water is drawn'from receiver ortank 11 back into the radiator, by reason of the deficiency of pressurein the radiator as compared with that in the tank ll. Thus the apparatusis maintained in charged condition, and no water is lost to thesystem asa whole.

Thepiie atmo that w on a vacuum is produced imthe radi: etor, theatmospheric pressure in the tank .11 forces the water back intotheradiatoii' end on the other hand, it acts as a safety rent, to, permitthe escape of any steam which might be generated in the tank 11 byreason of excessive heating of the radiator.

"What I claim is: W 1.; The combination w. th he water jacket ofinternal combustion engine, and a radietor connected to said water acct, rovided Tith a filler cap and with an over ow outlet'helowsaid'cap,; of a. receiver for containipg g. body of water, said receiverbeing open to communication with the atmosphere, and overflow pipeleading from said overflow 1 t meintains connection from the on let of.said radiator and communicating Viththe receiver below the level of thewater said overflow pipe and receiver belower than the overflow outletfrom the radiator, to allow flow of water from said outlet to thereceiver by ravity, to receive the overflow and steam rom the radiatorwhen the water therein boils, and to feed the overflow and condensedsteam back to the radiator when it cools. I

2. The combination with the water. jacket of an internal combustionengine, and a reere toptheinterior of tenk-lil, so

diator-conneeted'to said water iackct, provided with a filler cap andwith an overflow outlet'below said cap, of a receiver for containingabody of water, and an overflow pipe leading from said overflow outlet ofsaid radiator, and opening into the body of water in the receiver, saidreceiver being provided with a vent at its upper portion, and saidoverflow pipe and receiver being lower than the outlet from theradiator, to allow flow of water from the said outlet to the receiver bygravity.

3. The combination with the water circulating system for an internalcombustion engme of an overflow pipe therefor, and a receiver open toatmos nected to saidover discharge from said pipe when the water in thesystem boils and to retain the discharge and feed itlatter cools, saidoverflow pipe and receiver being lower than the overflow outlet'from thewater circulating system to said overflow 9 50W outlet to the receiverby gravity.

THOMAS o. YOUNG.

heric pressure and con-' Witnesses; 7

Annex P. Kmcxrr, O. H. Jones.-

ow pipe to receive the back into the system when'the 'to allow flow ofwater from said over

